Book cover



se vi. 16. 1924. 1,508,820

J. scHADE Boox COVER Filjed J ly 2a. 1923 10 E.EP 1 1 10 Patented Sept. 16, 1924 UNITED STATES- PATIENT-- OFFICE.

JOHN SCHADE, OF EOLYOKE, MASSACHUSETTS, ASSIGNOR TO NATIONAL BLANK BOOK COMPANY, OF HOLYOKE, MASSACHUSETTS, A VOLUNTARY TRUST ASSOCIA- TION O]? OOPARTNERSHIP, HAVING AS TRUSTEES F. B. TOWNE, E. S. TOWNE, I. M.

TOWNE, AND F. W. WILSON.

BOOK COVER.

- Application filed July 2a, 1923. Serial No. 654,297.

To all whom it may conaem:

Be it known that I, JOHN SoHADE, 'a citizen of the United States, residing at the city of Holyoke, in the county of Hampden 6 and State of Massachusetts, have invented certain new and useful Improvements in Book Covers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others 1 skilled in the art to which it appertains to make and use the same.

This invention relates-to book covers, but more particularly has reference to book covers that are especially adapted for loose 35 leaf binders of the ring type, these book covers being formed with a back portion suitably stifl'ened and conformed and side covers that are flexibly connected to the side edges of the back portion by means of me- E tallic hinge elements.

The object of the invention is to provide a book cover the outer-face of whose back portion shall be of leather or other flexible .material that is stiffened and made smooth so as not to become wrinkled orcollapsed, while the side covers are made from pliable leather, the complementary hinge elements at the side edges of the back rtion serving also to firmly bind the metal plate to the 3 leather back. v

In the accompanying drawings- Figure 1 is a plan view of the inside of the cover with the sides opened out- Figure 2 is a similar view of the outside of the cover v Figure 3 is a section at the line 2-2 of Figure 1- a Figure 4 is a section at the line 3--3 of Figure 1, and v 4 Figure 5 is a detail elevation of a short portion of the metal hinge strip. a 7

Similar numerals of reference denote like parts in the several figures of the drawing.

1 is the leather back and 2 a metal'plate 5 which is positioned against the inner face of the back; 1. p

The metal hinge strip, which is shown at Figure 5 and is generally designated by 3', has spaced fingers 4 and 5 extending from 0 opposite side edges of the strip, these fingers bemg staggered with respect to each other I and the fingers 5 beingsomewhat longer than the fingers 4;.

In adapting this strip tothe side edges of the back portion of the cover, a series of perforations 6, spaced to conform with the spacing of the fingers 5, are made through theplate 2, near the side edges thereof, and the fingers 4 and 5 are bent around and. their extremities clenched respectively into the outer face of the back 1 and through said perforations into the inner face of said back, the longer fingers 5 being first bent to form projecting alined eyes 7 and their extremities then clenched through the perforations into the back as above stated.

In adapting the strip 3 to the inner edges of the covers 8, the same method is followed as in the instance of the back portion except that no perforated metal plate is present, the shorter fingers being bent and clenched into the outer faces of the covers,

While the longer fingers are first bent to form projecting alined eyes 9 and their extremities are then clenched into the inner faces of the covers. 7

In assembling the covers with respe t to the back portion, the eyes? and 9 are inter' engaged so as to bring both sets of eyes in alinement, and a pintle 10 inserted through the eyes. 7

They cover thus formed is very neat and durable and the hinged covers are operated with the greatest facility. Moreover, it Wlll be noted that the metal plate 2 stifl'ens and shapes the leather back and is firmly held thereto solely by the complementary lnnge elements.

The ring structure is not shown, but 1s se cured in position in the usual manner by means of the eyelets 11 (only one shown) the plate 2 bein' pierced for the insertion of the eyelet an havingv a countersunk portion' 12 formed in its outer face to accommodate the head of the eyelet so that it will not project beyond the back of the plate.

No'novelty whatever is claimed for the metal hinge strip itself, since the invention resides solely in the manner and combination of elements necessary this strip to book covers.

What is claimed is 1. The herein described improvement in book covers, which consists of a flexible back having superimposed on its inner face a in order to adapt I metal plate having a series of spaced perforations extending along its side edges, a metal hinge strip having extending from opposite side edges series of staggered spaced fingers, the fingers of one series being bent around and clenched through the outer face of the leather back, While the fingers of the other series are bent around to form alined spaced eyes the extremitiesof these latter fingers being then clenched through the perforations in the metal plate intothe inside face of the leather back, pliable covers, metal strips having extending "from opposite side edges series of staggered spaced fingers Which are bent around and clenched into the inner ed es of the covers on the inside and outside aces thereof, one

set of these last named fingers before clenching being formed into alined spaced moeeeo pliable covers, complementary hinge ele-' ments one of which is clenched into the inner edges of the inside and outside surface of each cover While'the other of said elements is clenched into the outer surface of the edge portions of the leather back and through said perforations into the inside surface of said back said elements being interengaged, and pintles inserted Within said elements.

In testimony whereof ll aliix my signaeyes which are interengaged with the eyes, ture hereto.

along the side edges of the back portion to JOHN SCHADE. 

